Best Answer: I have a daughter close to your age, and unless you have wrinkling on your face ( you are 21 and have lots of collegen ), I think Kiehl offers other products that might be more suitable for your skin issues.
I think this product is more for people who are looking for an alternative
to botox or fillers. Just received it, so I have not had a chance to give it
a fair assessment.
I would recommend speaking to a Kiehl representative, and they will offer suggestions for product/s that would work best for you and your skin type.